Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Portland, ME.
Next low tide : 5:12 pm (1.5 ft)
Next high tide : in 5h 33m at 11:28 am (8.3 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:26 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Oct 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:049.312:169.66:040.76:260.36:386:23New Moon1Thu
2Fri12:399.212:479.76:350.87:000.26:396:21Waxing Crescent2Fri
3Sat1:139.01:199.77:090.97:370.26:406:19Waxing Crescent3Sat
4Sun1:508.81:549.77:451.08:170.36:416:17Waxing Crescent4Sun
5Mon2:298.62:349.68:241.29:020.56:426:15Waxing Crescent5Mon
6Tue3:148.33:229.69:101.49:530.66:446:14First Quarter6Tue
7Wed4:088.14:189.510:031.510:520.76:456:12First Quarter7Wed
8Thu5:088.15:219.411:031.611:540.76:466:10First Quarter8Thu
9Fri6:138.26:299.612:091.46:476:08First Quarter9Fri
10Sat7:208.67:379.81:000.51:171.16:486:07Waxing Gibbous10Sat
11Sun8:229.28:4210.12:040.22:250.56:506:05Waxing Gibbous11Sun
12Mon9:189.99:4110.53:02-0.23:25-0.26:516:03Waxing Gibbous12Mon
13Tue10:0910.610:3510.73:54-0.64:21-0.86:526:02Full Moon13Tue
14Wed10:5811.111:2810.74:43-0.85:13-1.36:536:00Full Moon14Wed
15Thu11:4511.35:31-0.86:04-1.56:545:58Full Moon15Thu
16Fri12:1910.512:3211.36:19-0.56:54-1.46:565:57Waning Gibbous16Fri
17Sat1:1010.21:1911.17:06-0.27:43-1.16:575:55Waning Gibbous17Sat
18Sun2:009.72:0810.67:540.38:34-0.66:585:53Waning Gibbous18Sun
19Mon2:529.22:5910.18:440.99:290.06:595:52Waning Gibbous19Mon
20Tue3:478.73:559.59:381.410:270.67:015:50Third Quarter20Tue
21Wed4:468.34:559.110:371.811:271.07:025:48Third Quarter21Wed
22Thu5:468.05:578.811:392.07:035:47Third Quarter22Thu
23Fri6:458.06:588.612:271.212:422.17:045:45Third Quarter23Fri
24Sat7:418.27:568.61:251.31:441.97:065:44Waning Crescent24Sat
25Sun7:328.57:488.71:181.21:391.66:074:42Waning Crescent25Sun
26Mon8:168.88:348.82:041.12:261.26:084:41Waning Crescent26Mon
27Tue8:559.29:168.92:431.03:070.86:104:39Waning Crescent27Tue
28Wed9:319.59:569.03:180.93:450.56:114:38New Moon28Wed
29Thu10:059.710:349.03:520.94:210.26:124:36New Moon29Thu
30Fri10:389.911:129.04:260.94:570.06:134:35New Moon30Fri
31Sat11:1210.011:498.95:010.95:34-0.16:154:34New Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

Common Questions About Portland, ME Tides

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What time does the tide turn (slack tide) in Portland, ME today?

Slack tide in Portland, ME is approximately 2:20 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Portland, ME?

Portland, ME is currently in a spring phase. Tonight's moon is 99% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Portland, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Portland, ME?

Tide predictions for Portland, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Portland, ME?

Tide data for Portland, ME is sourced from NOAA Station #8418150. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8418150.

What is the moon phase in Portland, ME tonight?

Tonight the moon over Portland, ME is Full Moon (99% illuminated). This places Portland, ME in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA